| 车载高压气动减压阀压力场与速度场研究 |
| |
| 引用本文： | 訚耀保,张丽,李玲,沈力,傅俊勇.车载高压气动减压阀压力场与速度场研究[J].中国工程机械学报,2011,9(1):1-6. |
| |
| 作者姓名： | 訚耀保 张丽 李玲 沈力 傅俊勇 |
| |
| 作者单位： | 1. 同济大学,机械工程学院,上海,201804
2. 上海航天控制技术研究所,上海,200233 |
| |
| 基金项目： | 国家"八六三"高技术发展计划资助项目，国家自然科学基金资助项目，航空科学基金资助项目 |
| |
| 摘 要： | 分析了氢能源汽车输氢系统的70 MPa两级气动减压过程,取得了两级减压阀各阀腔内部的压力场和速度场分布规律.研究结果表明:两级气动减压阀组的阀腔压力分布可分为上游压力区、中间压力区和下游压力区;第一级减压阀和第二级减压阀的阀口处气体均为超音速流动状态,2个减压阀出口的封闭直角区域均存在低速涡流现象.可以通过计算流体动力学(CFD)方法得到流场分布的数据,为车载减压阀组和锥形阀芯的形状与结构设计提供理论依据.
|
| 关 键 词： | 气动技术 减压阀 压力场 速度场 氢能源汽车 |
Study on pressure and velocity fields of pneumatic high-pressure reduction valve for hydrogen vehicles |
| |
| YIN Yao-bao,ZHANG Li,LI Ling,SHEN Li,FU Jun-yong.Study on pressure and velocity fields of pneumatic high-pressure reduction valve for hydrogen vehicles[J].Chinese Journal of Construction Machinery,2011,9(1):1-6. |
| |
| Authors: | YIN Yao-bao ZHANG Li LI Ling SHEN Li FU Jun-yong |
| |
| Affiliation: | YIN Yao-bao1,ZHANG Li1,LI Ling1,SHEN Li1,FU Jun-yong2(1.College of Mechanical Engineering,Tongji University,Shanghai 201804,China,2.Shanghai Aerospace Control Technology Institute,Shanghai 200233,China) |
| |
| Abstract: | By analyzing 70 MPa two-level pneumatic pressure reduction process for the infusion system of hydrogen vehicles,the pressure and velocity filed distributions in valve chambers are detected.Accordingly,it is indicated from experimental results that the pressure distribution can be classified into upstream,intermediary and downstream zones.Due that the gas is infused at a supersonic fluid state,there exists a low-speed turbulent flow in two enclosed rectangular zones of valve outlets.Through the flow-filed di... |
| |
| Keywords: | pneumatic technology pressure-reduction valve pressure field velocity field hydrogen vehicle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
